In-Lore explanation for the Red Sky changes

[FredWolfLeonardo]

Originally Posted by MikeandRaph87

Your theory has a hole in it as it tries to incorporate the crossovers with the 1987 cartoon. The '87 set have visited the Mirageverse twice and seemed like it was their first time both times. Trying to make a Krang a rejected utrom exiled to another Earth makes little sense. Not to mention the behavior of the '87 set being so cowardly and fighting pizza goblins? The two separate crossovers just cannot fit into the 1987 cartoon.

The only crossovers I counted were the Nick ones, I think there are too many irreconcilable differences between the Original Cartoon and Turtles Forever to make it canon.

Even for Mirage, Turtles Forever has an awesome depiction of their turtles but it really didn't put continuity on its priority list, as there is no way it could take place anywhere in Volume 1, Issue 1 where Shredder was still alive. Nick's depiction of Mirage on the other hand, doesn't really have any continuity errors.